This inventor holds 2 USPTO granted patents. Top assignee: Tokyo Ohka Kogyo Co., Ltd.. Active years: 2009-2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2009-2012
Title: Sachiko Yoshizawa: Innovator in Positive Resist Composition
Introduction
Sachiko Yoshizawa is a prominent inventor based in Kawasaki, Japan. She has made significant contributions to the field of materials science, particularly in the development of positive resist compositions used in semiconductor manufacturing. With a total of 2 patents, her work has been influential in advancing technology in this area.
Latest Patents
Yoshizawa's latest patents include innovative formulations for positive resist compositions. The first patent describes a positive resist composition for forming a thick-film resist with a film thickness of 1 to 15 μm. This composition includes a resin component that features a polymer compound with specific structural units derived from hydroxystyrene and acrylate esters. Additionally, it incorporates an acid generator component that generates acid upon exposure, enhancing the resist's performance.
The second patent focuses on a positive photoresist composition that exhibits increased alkali solubility under the action of acid. This composition also includes a resin component with acid dissociable, dissolution inhibiting groups, and an acid generator component that generates acid upon exposure. These innovations are crucial for improving the efficiency and effectiveness of resist patterns in semiconductor applications.
Career Highlights
Yoshizawa is currently employed at Tokyo Ohka Kogyo Co., Ltd., a leading company in the field of chemical manufacturing for electronics. Her work at the company has positioned her as a key player in the development of advanced materials for the semiconductor industry.
Collaborations
Throughout her career, Yoshizawa has collaborated with notable colleagues, including Akiyoshi Yamazaki and Kazuo Tani. These collaborations have further enriched her research and development efforts, leading to groundbreaking advancements in her field.
Conclusion
Sachiko Yoshizawa's contributions to the field of positive resist compositions have made her a significant figure in the semiconductor industry. Her innovative patents and collaborations reflect her dedication to advancing technology and improving manufacturing processes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile